Book Image

Docker Orchestration

By : Randall Smith
Book Image

Docker Orchestration

By: Randall Smith

Overview of this book

Docker orchestration is what you need when transitioning from deploying containers individually on a single host to deploying complex multi-container apps on many machines. This book covers the new orchestration features of Docker 1.12 and helps you efficiently build, test, and deploy your application using Docker. You will be shown how to build multi-container applications using Docker Compose. You will also be introduced to the building blocks for multi-host Docker clusters such as registry, overlay networks, and shared storage using practical examples. This book gives an overview of core tools such as Docker Machine, Swarm, and Compose which will enhance your orchestration skills. You’ll learn how to set up a swarm using the decentralized building block. Next, you’ll be shown how to make the most out of the in-built orchestration feature of Docker engine and you’ll use third-party tools such as Kubernetes, Mesosphere, and CoreOS to orchestrate your existing process. Finally, you will learn to deploy cluster hosts on cloud services and automate your infrastructure.
Table of Contents (17 chapters)
Docker Orchestration
About the Author
About the Reviewer
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Chapter 10. Why Stop at Containers? Automating Your Infrastructure

The last nine chapters have talked a lot about automating Docker. That is what this book is about, after all. It is important to remember that there is more to a Docker cluster than just Docker. There is the registry, shared storage, overlay networks, and the actual orchestration tool, be it Swarm, Kubernetes, Mesos, or something else. There is one last, very important piece to the puzzle. The servers that all of that run on. Whether those servers are hardware or part of a public cloud, they too need to be managed. After all, what good is it if the Docker orchestration tool can quickly scale an image out if it takes hours to deploy a new Docker host?

This chapter will look at strategies and tools that can be used to automate the server-side of a Docker cluster. It will start by examining the servers themselves, then move on to options for running those machines in the cluster. Finally, it will look at options for removing...